Fixing some AIDL warnings.

Can't change the enum values as they are a part of public API (and enum-zero is not a warning apparently).

Fixes: 179836890
Test: atest PackageManagerShellCommandTest PackageManagerShellCommandIncrementalTest IncrementalServiceTest PackageManagerServiceTest ChecksumsTest
Change-Id: I4d59410ec3476298cc98fdcc9584468b1debcb41
2 files changed